Disk jointer.



UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Dec. {1, 1906.

Application filed March 9|1906- Serial No. 305.168.

To all whom it ntazyconcern."

Be it known that 1, Nine P. NELSON, a

citizen of the/United States, residing at Lex-' ington, in the county of Morrow and State of Oregon, have invented a new and useful Disk J ointer, of. whichthe following is a specification.

This invention relates to disk jointers for plows and the objects of-the invention are to simplify and improve the construction and operation of this class of devices.

With these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists 1 in the improved construction" and novel ar-- rangement and combination of parts, which will be hereinaftenfully described, and particularly 'pointedout in the claims.

In theaccompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understoodthat no limitation is necessarily made to the pre-,

cise structural details therein exhibited, but that changes, alterations, and modifications within the scope of the invention may be resorted to when desired.

In the drawings, Figure 1 is a perspective v1ew showing the improved jointer attached to a plow in position for operation. Fig. 2 is 0 a rear view of the disk ointer and related parts. Fig. 3 is a sectional view on an approximately horizontal plane, taken through the axis of the-disk and adjacent parts. Fig. 4 is a sectional detail taken through the su orting-arm and the stop member for tl e atter. a I

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

plate 4 and aving a set-screw 5, adapted to press agains the shank 1, which latter may e thereby s'ecurely retainedat various adjustments. The clip-plate 4 is apertured for the passage of connecting members, such as bolts 6, w ereby it is connected with a clamping-plate 7, the clip-plate and the clampingplow 9' in connection with which the improved The shank or memberl whereby the implate receiving between them the beam 8 of a disk j ointer is to be used and upon which the shank 1 may thus be securely mounted in any desired osition.

The disk constituting the jointer isc'arried by a supporting-arm10, a t'-one end of which are formed arecess or bifurcation 1 1 and a ver- -tical aperture 12, the latter engaging the crank 2 at the lower end of the shank 1. A

collar 13 is fittedin the recess 11 of the arm 10, said collar being provided .with a setscrew 14, adapted to bear against the crank 2, upon which the collar may thus be securely retained, said collar serving also to retain in position the securing-arm 10, which latter, however, is free to rotate upon the crank 2 to a certainextent, the movement of said supporting-arm being checked by a stop-l ug 15,

, extending from the collar and lying in the path of the supporting-arm. The stop mem- 7 5 ber 15is disposed adjacent to'what may be regarded as the rear side of the supporting-arm, and the'latter will thus be freeto swing or to move in a forward direction only, its movement in a rearward direction being checked by the stop-lug 15 of the collar '13, which latter, however, ma be readily ad justed; so as to regulate t e extent ofthe rearward movement of the supporting-arm,

The supporting-arm 10 is provided near its free end with an approximately horizontal sleeve 16, affording a bearing for the spindle or axle 17 of the disk18, which latter is a concavo-convex disk of ordinary construction and of suitable dimensions. The spin- -dle is formed with a flan ed plate 19, riveted u on or otherwise suita ly connected with t e back of the disk, said flanged plate serv- 'ing to accommodate a boss 20, formed inteal with the-supportin -arm 10. -The spin- 5 file 17, which pro'ects t ough thesleeve 16, is apertured for t e rece tion of a pinor key 21, and the extremity o the sleeve 16 isv extern'ally. threaded for the reception of a capnut 22, which serves to prevent loss or displacement of the pin 21 and which also exeludes dust and grit from the bearing in which the disk is thus sup orted for rotation.

' The free extremity of t e supporting-arm- 10. has an approximately vertlcal aperture 23 for the passage of an inverted-U-shaped shank 24, which is retained'in position adjustably by meansof a set-screw'-25. The shank 24 extends upwardly above the upper edge of the disk 18 and is curved ina forward and downward direction, carryin at its terminal end a scraper-plate 26, w 'ch constitutes a moldboard that operates, in conjunction with the rotary disk, to keep the latter free from" adhering dirt and to turn the furrow-slice which is loosened by the disk.

' nexed. The shank 1 ma v tion to resent the disk at any desired-angle .to the ine-of-progr'ess, thereby regulating justment and t The operation and advantages of the improved disk 'ointer will be readily understood from t e foregoin description, taken in connection with the rawings hereto an be' conveniently connected with the" low-, earn any desired distance in front of tile plow proper, and-it is not only verticall adjustable in the support ing-sleeve 3, but y adjusting the shank axially in the sleeve or b turning it upon its axis the crank *2 will be adjusted so as to regulate the position of the supporting-arm and the disk-carried thereby laterallywith Further adjustment having the stop member 15, whereby the disk-carrying arm may be checked in a posithe width of the 'furrow turned thereby. It will thus be seen that the improved disk jointer is susceptible of every variety of adat its operation will e thorou hand efiicient.

aving thus described the invention,-what is claimed is a v l 1. Ina device of the class described, a supporting-shank havin a crank, a disk-carrymg arm havi a lifurcated end pivoted upon said sha a collar fitted upon the crank withjnthe recess or bifurca ion of the disk-carrying arm, and having a sto -lug for the arm which extends outwardly om the recess in the direction "toward the free end of the arm and along one side of the latter, and

means for securing the collar adjustablyupon the crank. j

2. In a device of the class described, a supportin -arm having a sleeve extending from one si e thereof and a boss on the opposite side having a flat face of'substantial area, a

solid shank-spindle rotatably mounted in the spindle.

sleeve-and boss which is provided with a transversel -extending plate portion coextensive wit and bearing on the flat face of the boss and having anintegral flange pe-' ripherally engaging the boss, a single device on theend o the s indle which engages the sleeve for holdin tlie'sp'i'ndle in place, and a disk secured soleIy to the plate portion'of the 3. In a device of the'character described, asupporting-arm pivotally mounted at one end and provided with a sleeve and an eye at its opposite end which are disposed with their axes at right-angles, a'rotatable spindle mounted in the-sleeve and provided with a plate portion, a disk'secured to the plate portionof the spindle, a scraper coo crating with the disk, and-a U-shaped shank supporting the scraper which is ad'ustable longitudinally and angularly in t e eye of the supporting arm.

'4. In adevice of the classdescribed, a supporting-arm pivotally mounted at one end on a vertical axis and provided with ahorizon tal sleeve on one side of the arm at the oppo site end and with a perforated boss on the opposite side of the armand disposed in line,

with the sleeve, an eye arranged adjacent the said sleeve with its axis vertical, a spindle mounted in the perforated boss and'sleeve which is provided with a flanged plate arranged with the flange thereof peripherally enga ing the said boss, a disk, means for securing the disk to the flanged plate,

rigid y the disk, and a a scraper cooperating with supporting-shank for the scraper which is angularly and longitudinally adjustable in the eye of the supportingarm.

' In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

v vELs P. -NELSON.'

Witnesses I W. E. LEACH,

R. C; WARREN. 

